One of the questions we often get is how using EasyAngle compares to using a CROM device, or iPhone or Android apps. Sebastian Köcker -Universitätsklinikum Freiburg- evaluated practicability and accordance of these devices and the result was a grand slam for EasyAngle ! EasyAngle was assessed "very practical" by 82% (55 of 67 users) , compared to the iPhone apps 0,5% (1 of 67) or the CROM device 0% (0 of 67). The study showed a standard deviation of 3.3° for EasyAngle, compared to 9.9° for the iPhone and 3.8° for the CROM device.